Small sailboats can easily turn over in the water ______ they are not managed carefully.
If you want to sell your product you must _____ it.
He left _____with the secretary that he would call again in the afternoon. He said he would keep ______.
Are the parents who let their child who is ______ walk in the dark alone at night considerate?
______we move the picture over there? Do you think it will look better?
________ doesn’t seem to have been much difficulty in solving the problem.